Finding the Fourth Proportional to 1,208,145.28, 1,667,283.28 and 664,322.48
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Solution
The fourth proportional to 1,208,145.28, 1,667,283.28 and 664,322.48 is: 916,788.55
Step by Step Solution
- Step 1: Write the proportion equation
1,208,145.28 : 1,667,283.28 = 664,322.48 : x - Step 2: Convert to fraction form
1,208,145.28/1,667,283.28 = 664,322.48/x - Step 3: Cross multiply
1,208,145.28x = 1,667,283.28 × 664,322.48 - Step 4: Simplify right side
1,208,145.28x = 1,107,613,763,432.13 - Step 5: Solve for x
x = 1,107,613,763,432.13/1,208,145.28 - Step 6: Final answer
x = 916,788.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.